Marlboro Man Sandwiches

No, they don’t have any tobacco in them, but they are loaded with steak, veggies and cheese. We heard the Marlboro Man feasted on these when he was trying to quit smoking…he died anyway.
4 tablespoons butter
2 lbs. cube steak
Kosher salt
Freshly ground pepper
1 whole large yellow onion, halved and sliced thick
2 whole green bell peppers, sliced into rings
2 whole red bell peppers, sliced into rings
3 cloves garlic, minced
16 oz. white mushrooms, minced
2 tablespoons additional butter
1 1/2 cup sherry or cooking sherry (optional)
4 tablespoons Worcestershire sauce
4 dashes Tabasco (or to taste)
8 whole deli rolls (the crustier, the better)
2 tablespoons additional butter
8 slices cheese (Provolone, Swiss or Pepper Jack)

Cut cube steak into strips against the grain. Season with salt and pepper and set aside.
Heat 4 Tbsp. butter in a large skillet over high heat. As soon as it’s melted (but before it burns), brown stips of cube steak in two or three batches, about 1 1/2 minutes per side. Remove meat to a clean plate when brown and set aside.
Reduce heat to medium-high. Add onions, garlic, green peppers and red peppers and cook for 3 to 5 minutes or until relatively soft (but not flimsy). Remove to a clean plate and set aside.
Melt 2 additional Tbsp. butter to the skillet. Add sliced mushrooms and stir. Pour in sherry, then add Worcestershire and Tabasco. Cook over medium high heat for five minutes or until liquid has reduced by about a third.
Add in meat and vegetables, stirring to combine. Cook for just a few minutes to heat everything up, adding more sherry, Worcestershire and Tabasco as needed. Stir in 2 Tbsp. butter at the end. Keep hot.
Toast halved deli rolls in plenty of butter until golden brown and crisp.
Spoon meat/veggie mixture on the lower half of the bun, then spoon one or two Tbsp. of pan sauce over the meat (it will soak into the bun.) Drizzle a little sauce onm the underside of the top bun, too, for extra flavor and moisture. Top with cheese and broil for a minute or two, until the cheese is melted.
Serve immediately. (Serves 8.)